Piedmont Weather Forecast

    • 55
    • 68

    Mostly Cloudy

    • 52
    • 70

    Partly Sunny

    • 55
    • 74

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 55
    • 77

    Mostly Sunny

    • 54
    • 78

    Partly Sunny

Today 29 Sep Inner Portland Metro

Mostly cloudy. Highs around 70. Winds light.

Tonight 29 Sep Inner Portland Metro

Mostly cloudy with a 20 percent chance of rain. Lows in the mid 50s. Winds light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Piedmont Temperature Statistics

September Temperature

Portland, Portland International Airport (3.1 miles)

  • Lowest 26 September, 2026

    48 °F

  • Average September

    64.2 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Portland, Portland International Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
Get WillyWeather+ to remove ads